EMODnet product catalogue
MEP-NSW Demersal fish
The main purpose of this sampling was to study the effects of the OWEZ windpark on the demersal fish community. Because before installation of the windfarm the main fisheries activity in the area was bottom trawling, it is expected that exclusion of fisheries in the wind farm has the largest effect on the demersal fish community. The wind farm and its safety zone could function as a refugium for these species. If the area functions as a refugium this could be the case for a large number of demersal fish species that occur in the Dutch coastal zone. Owing to this a positive effect of the wind farm on the demersal fish community was expected. The fisheries that occurred in the area targeted larger fish, therefore fisheries mortality was higher on the larger fish. By excluding fisheries in the farm it was expected to change the size distribution in the farm and by that the age distribution of the fish populations. A Hydrolab minisonde, attached to the net, was used for continuous CTD measurements.
Simple
- Date (Creation)
- 2011-12-31
- Date (Revision)
- Date (Publication)
- 2018-02-26
- Date (Publication)
- 2021-02-04
- Citation identifier
- fe8f6f7e-54ab-4aaa-8847-7a58d0552a94
- Point of contact
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Organisation name Individual name Electronic mail address Role NoordzeeWind BV Originator of Dataset Rijkswaterstaat Water, Traffic and Environment Originator of Dataset Deltares Dataset Holding Organisation Deltares Author
- Keywords
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- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Use limitation
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Conditions for access and use apply
- Use constraints
- Other restrictions
- Other constraints
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CC0 1.0
- Language
- English
- Character set
- UTF8
- Topic category
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- Oceans
- Begin date
- 2011-01-01
- End date
- 2011-12-31
))
- Unique resource identifier
- WGS 1984
Spatial representation info
- Distribution format
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Name Version Delimited 1
- OnLine resource
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Protocol Linkage Name WWW:DOWNLOAD-1.0-http--download
https://cloud.emodnet-ingestion.eu/index.php/s/oNtadfHLkW7QpYj WWW:LINK-1.0-http--link
https://www.emodnet-biology.eu/data-catalog?module=dataset&dasid=6589
- Hierarchy level
- Dataset
Conformance result
- Title
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COMMISSION REGULATION (EC) No 1205/2008 of 3 December 2008 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards metadata
- Date (Publication)
- 2010-12-08
- Explanation
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See the referenced specification
- Pass
- No
Conformance result
- Title
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Corrigendum to INSPIRE Metadata Regulation published in the Official Journal of the European Union, L 328, page 83
- Date (Publication)
- 2010-12-08
- Explanation
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See the referenced specification
- Pass
- No
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
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See the referenced specification
- Pass
- No
- Statement
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As in the baseline study, two 6 m beam trawls were used for our study with the vessel GO58 "Jakoriwi". On one side of the ship, we used a beam trawl with a 40 mm net also used in an annual coastal survey (SNS; since 1969). Because this gear catches a low number of smaller fish, a fine meshed net (with 20 mm in the bag) was used on the other side of the ship. This net is used in another annual survey (DFS; since 1970) but has to be attached to a heavy beam to keep the ship in balance. Therefore, the catches with the larger meshsized net are fully comparable to the SNS, whereas catches with the fine meshed net are not fully comparable to the DFS. Length frequency distributions from both nets show that they are complementary, and thus provide a good description of the demersal fish population (Grift & Tien, 2003). The same procedure as in the SNS was followed to make catches from the baseline study comparable to the SNS data, meaning the towing speed was 6.5 km hr (3.5 knots) over the ground, and each haul lasted 15 minutes.
Metadata
- File identifier
- fe8f6f7e-54ab-4aaa-8847-7a58d0552a94 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-05-09T00:00:00
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
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1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role Deltares Point of contact
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